refactor(validator): rename enum rule and method to in

70b1016 refactor(autoload): remove global exception handler
a534613 refactor(request): propagate validation failures as exceptions
5f3fc16 feat(router): add error boundary with exception callback
9dbfd7d feat: add named parameter injection to resolve()

.htaccess

@@ -1,6 +1,9 @@
 <IfModule mod_rewrite.c>
     RewriteEngine On
 
+    # Bloquear acceso a las carpetas vendor/ y src/
+    RewriteRule ^(vendor|src)/.*$ - [F,L]
+
     # Handle Front Controller...
     RewriteCond %{REQUEST_FILENAME} !-d
     RewriteCond %{REQUEST_FILENAME} !-f

autoload.php

@@ -0,0 +1,14 @@
+<?php
+
+require_once('config.php');
+
+// Autoloader for the core classes
+spl_autoload_register(function ($className) {
+    $fp = str_replace('\\', '/', $className);
+    $name = basename($fp);
+    $dir  = dirname($fp);
+    $file = ROOT_CORE . '/' . $dir . '/' . $name . '.php';
+    if (file_exists($file)) {
+        require_once $file;
+    }
+});

config.php

@@ -1,14 +1,15 @@
 <?php
-// Configuración de la base de datos
+
+// Database configuration
 define('DB_TYPE', 'mysql');
 define('DB_HOST', 'localhost');
 define('DB_NAME', '');
 define('DB_USER', '');
 define('DB_PASS', '');
 
-// Configuración del sitio
+// Site configuration
 define('SITE_URL', '');
 
-// Configuración avanzada
+// Advanced configuration
 define('ROOT_DIR', __DIR__);
-define('ROOT_CORE', ROOT_DIR.'/src');
+define('ROOT_CORE', ROOT_DIR . '/src');

index.php

@@ -1,24 +1,15 @@
 <?php
-require_once('config.php');
 
-// Incluir clases
+use Libs\Loader;
-spl_autoload_register(function ($className) {
+use Libs\Router;
-    $fp = str_replace('\\','/',$className);
-    $name = basename($fp);
-    $dir  = dirname($fp);
-    $file = ROOT_CORE.'/'.$dir.'/'.$name.'.php';
-    if (file_exists($file)) {
-        require_once $file;
-        return;
-    }
-});
 
-// Incluir routers
+require_once('autoload.php');
-$routers = glob(ROOT_CORE.'/Routers/*.php');
 
-foreach($routers as $file){
+// Router autoload
-    require_once($file);
+Loader::load(ROOT_CORE . '/Routers/');
-}
 
-\Libs\Router::apply();
+// Other autoloads
-?>
+Loader::load(ROOT_CORE . '/Autoloads/');
+
+// Run the routers
+Router::apply();

readme.org

@@ -28,79 +28,91 @@ En la siguiente tabla se encuentra la lista de estados de los gestores de bases
 + *En blanco* como que no ha sido probado aún.
 + *error* como que fue probado, no funciona y no ha sido aún arreglado.
 + *not supported* como no soportado por el gestor de bases de datos.
-+ *fixed* para aquello que no existe en el gestor de DB, pero la librería lo traduce a un equivalente.
++ *fixed* para aquello que no existe en el gestor de BD, pero la librería lo traduce a un equivalente.
 
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
 | method           | MySQL/MariaDB | sqlite3 | postgreSQL |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| db               | ok            | ok            |            |
+| db               | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| query            | ok            | ok            |            |
+| query            | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| resetQuery       | ok            | ok            |            |
+| resetQuery       | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| buildQuery       | ok            | ok            |            |
+| buildQuery       | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| getInstance      | ok            | ok            |            |
+| getInstance      | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| getVars          | ok            | ok            |            |
+| getVars          | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| className        | ok            | ok            |            |
+| className        | ok            | ok      | pk         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| table            | ok            | ok            |            |
+| table            | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| update           | ok            | ok            |            |
+| update           | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| beginTransaction | ok            | ok            |            |
+| beginTransaction | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| rollBack         | ok            | ok            |            |
+| rollBack         | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| commit           | ok            | ok            |            |
+| commit           | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| add              | ok            | ok            |            |
+| add              | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| save             | ok            | ok            |            |
+| save             | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| delete           | ok            | ok            |            |
+| delete           | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| select           | ok            | ok            |            |
+| select           | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| from             | ok            | ok            |            |
+| from             | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| where            | ok            | ok            |            |
+| where            | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| where_in         | ok            | ok            |            |
+| whereIn          | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| leftJoin         | ok            | ok            |            |
+| whereNotIn       | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| rightJoin        | ok            | not supported |            |
+| whereNull        | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| innerJoin        | ok            | ok            |            |
+| whereNotNull     | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| and              | ok            | ok            |            |
+| whereExists      | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| or               | ok            | ok            |            |
+| whereNotExists   | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| groupBy          | ok            | ok            |            |
+| leftJoin         | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| limit            | ok            | ok            |            |
+| rightJoin        | ok            | fixed   | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| orderBy          | ok            | ok            |            |
+| innerJoin        | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| count            | ok            | ok            |            |
+| crossJoin        | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| getById          | ok            | ok            |            |
+| and              | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| search           | ok            | ok            |            |
+| or               | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| get              | ok            | ok            |            |
+| groupBy          | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| getFirst         | ok            | ok            |            |
+| limit            | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| all              | ok            | ok            |            |
+| orderBy          | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
-| setNull          | ok            | ok            |            |
+| count            | ok            | ok      | ok         |
-|------------------+---------------+---------------+------------|
+|------------------+---------------+---------+------------|
+| getById          | ok            | ok      | ok         |
+|------------------+---------------+---------+------------|
+| search           | ok            | ok      | ok         |
+|------------------+---------------+---------+------------|
+| get              | ok            | ok      | ok         |
+|------------------+---------------+---------+------------|
+| getFirst         | ok            | ok      | ok         |
+|------------------+---------------+---------+------------|
+| all              | ok            | ok      | ok         |
+|------------------+---------------+---------+------------|
+| setNull          | ok            | ok      | ok         |
+|------------------+---------------+---------+------------|
 
 * Contacto
 

src/Libs/Database.php

@@ -1,45 +1,51 @@
 <?php
-/**
- * Database - DuckBrain
- *
- * Clase diseñada para crear y devolver una única instancia PDO (database).
- *
- * @author KJ
- * @website https://kj2.me
- * @licence MIT
- */
 
 namespace Libs;
 
+use Exception;
 use PDO;
 use PDOException;
-use Exception;
 
-class Database extends PDO {
+/**
-    static private array $databases = [];
+ * Database - DuckBrain
-
+ *
-    private function __construct() {}
+ * Class designed to create and return a single PDO instance (database).
+ *
+ * @author KJ
+ * @website https://kj2.me
+ * @license MIT
+ */
+class Database extends PDO
+{
+    private static array $databases = [];
 
     /**
-     * Devuelve una instancia homogénea (singlenton) de la base de datos (PDO).
+     * Private constructor to prevent direct instantiation.
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Returns a homogeneous (singleton) instance of the database (PDO).
      *
      * @return PDO
+     * @throws Exception If there is an error connecting to the database.
      */
-    static public function getInstance(
+    public static function getInstance(
         string $type = 'mysql',
         string $host = 'localhost',
         string $name = '',
         string $user = '',
         string $pass = '',
-    ): PDO
+    ): PDO {
-    {
+        $key = $type . '/' . $host . '/' . $name . '/' . $user;
-        $key = $type.'/'.$host.'/'.$name.'/'.$user;
         if (empty(static::$databases[$key])) {
-
             if ($type == 'sqlite') {
-                $dsn = $type .':'. $name;
+                $dsn = $type . ':' . $name;
-            } else
+            } else {
-                $dsn = $type.':dbname='.$name.';host='.$host;
+                $dsn = $type . ':dbname=' . $name . ';host=' . $host;
+            }
 
             try {
                 static::$databases[$key] = new PDO($dsn, $user, $pass);
@@ -55,4 +61,3 @@ class Database extends PDO {
         return static::$databases[$key];
     }
 }
-?>

src/Libs/Loader.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Libs;
+
+/**
+ * Loader - DuckBrain
+ *
+ * Simple library to bulk load multiple php files inside a folder.
+ *
+ * @author KJ
+ * @website https://kj2.me
+ * @license MIT
+ */
+class Loader
+{
+    /**
+     * Loads all PHP files from a specified directory.
+     * If the directory does not exist or is not a directory, no files will be loaded.
+     *
+     * @param  string $directoryPath The path to the directory containing the PHP files to load.
+     * @return void
+     */
+    public static function load(string $directoryPath): void
+    {
+        if (is_dir($directoryPath)) {
+            foreach (glob(rtrim($directoryPath, '/') . '/*.php') as $file) {
+                require_once($file);
+            }
+        }
+    }
+}

src/Libs/Middleware.php

@@ -1,28 +0,0 @@
-<?php
-/**
- * Middleware - DuckBrain
- *
- * Librería base para middlewares.
- *
- * @author KJ
- * @website https://kj2.me
- * @licence MIT
- */
-
-namespace Libs;
-
-class Middleware {
-
-    /**
-     * Llama al siguiente callback.
-     *
-     * @param Neuron $req
-     *
-     * @return mixed
-     */
-    public static function next(Neuron $req): mixed
-    {
-        $next = array_pop($req->next);
-        return call_user_func_array($next, [$req]);
-    }
-}

src/Libs/Neuron.php

@@ -1,54 +1,59 @@
 <?php
+
+namespace Libs;
+
+use AllowDynamicProperties;
+
 /**
  * Neuron - DuckBrain
  *
- * Neuron, sirve para crear un objeto que alojará valores, pero
+ * Neuron, serves to create an object that will hold values.
- * además tiene la característica especial de que al intentar
+ * In addition, it has the special characteristic that when trying
- * acceder a un atributo que no está definido devolerá nulo en
+ * to access an undefined property, it will return null instead
- * lugar de generar un error php notice que indica que se está
+ * of generating a notice (PHP notice) for an undefined variable or property.
- * intentando acceder a un valor no definido.
  *
- * El constructor recibe un objeto o arreglo con los valores que
+ * The constructor accepts an object or an array containing the
- * sí estarán definidos.
+ * values that will be defined.
  *
  * @author KJ
  * @website https://kj2.me
- * @licence MIT
+ * @license MIT
  */
-
-namespace Libs;
-use AllowDynamicProperties;
-
 #[AllowDynamicProperties]
-class Neuron {
+class Neuron
-
+{
     /**
-     * __construct
+     * Constructor
      *
-     * @param array $data
+     * @param array $data Data to initialize the Neuron with. Can be an array or an object.
      */
     public function __construct(...$data)
     {
-        if (count($data) === 1 &&
+        if (
+            count($data) === 1 &&
             isset($data[0]) &&
             (is_array($data[0]) ||
-             is_object($data[0])))
+             is_object($data[0]))
+        ) {
             $data = $data[0];
+        }
 
-        foreach($data as $key => $value)
+        foreach ($data as $key => $value) {
             $this->{$key} = $value;
         }
+    }
 
     /**
-     * __get
+     * Magic method __get
      *
-     * @param string $index
+     * This method is called when an undefined property is accessed.
-     * @return null
+     * It returns null instead of triggering an E_NOTICE.
+     *
+     * @param  string $index The name of the property being accessed.
+     * @return null   Always returns null for undefined properties.
      */
-    public function __get(string $index): null
+    public function __get(string $index)
     {
         return null;
     }
 }
-
-?>

src/Libs/Request.php

@@ -1,122 +1,180 @@
 <?php
-/**
- * Request - DuckBrain
- *
- * Libería complementaria de la libería Router.
- * Contiene el cuerpo básico de la petición http (POST, GET, JSON, etc).
- *
- * @author KJ
- * @website https://kj2.me
- * @licence MIT
- */
 
 namespace Libs;
 
-class Request extends Neuron  {
+use Exception;
+
+/**
+ * Request - DuckBrain
+ *
+ * Complementary library to the Router library.
+ * Contains the basic body of the http request (POST, GET, JSON, etc).
+ *
+ * @author KJ
+ * @website https://kj2.me
+ * @license MIT
+ */
+class Request extends Neuron
+{
     public Neuron $get;
     public Neuron $post;
+    public Neuron $put;
+    public Neuron $patch;
+    public Neuron $delete;
     public Neuron $json;
     public Neuron $params;
     public string $path;
     public string $error;
-    public array  $next;
+    public string $body;
 
     /**
      * __construct
-     *
-     * @param string $path  Ruta actual tomando como raíz la instalación de DuckBrain.
      */
     public function __construct()
     {
         $this->path   = Router::currentPath();
         $this->get    = new Neuron($_GET);
         $this->post   = new Neuron($_POST);
+        $this->put    = new Neuron();
+        $this->patch  = new Neuron();
+        $this->delete = new Neuron();
+        $this->params = Router::$params ?? new Neuron();
+        $this->body   = file_get_contents("php://input");
 
         $contentType = isset($_SERVER["CONTENT_TYPE"]) ? trim($_SERVER["CONTENT_TYPE"]) : '';
-        if ($contentType === "application/json")
+        if ($contentType === "application/json") {
             $this->json = new Neuron(
-                (object) json_decode(trim(file_get_contents("php://input")), false)
+                (object) json_decode(trim($this->body), false)
             );
-        else
+        } else {
             $this->json   = new Neuron();
+            if (
+                in_array($_SERVER['REQUEST_METHOD'], ['PUT', 'PATCH', 'DELETE']) &&
+                preg_match('/^[^;?\/:@&=+$,]{1,255}[=]/', $this->body, $matches)
+            ) {
+                // With the regular expression, we verify that it is a valid
+                // http query string and avoid memory errors in case
+                // the body contains something larger than that.
+                parse_str($this->body, $input_vars);
+                $this->{strtolower($_SERVER['REQUEST_METHOD'])} = new Neuron($input_vars);
+            }
+        }
 
-        $this->params = new Neuron();
+        // Run configured validations
+        $this->validate();
     }
 
     /**
-     * Inicia la validación que se haya configurado.
+     * Starts the configured validation.
      *
-     * @return mixed
+     * On failure the single error message is built with Validator::message()
+     * and handed to onInvalid(), which throws by default: failures travel up
+     * as exceptions instead of answering HTTP here.
+     *
+     * @return void
+     * @throws Exception When a configured rule fails.
      */
-    public function validate(): mixed
+    public function validate(): void
     {
-        if ($_SERVER['REQUEST_METHOD'] == 'GET')
+        $actual = match ($_SERVER['REQUEST_METHOD']) {
-            $actual = $this->get;
+            'POST', 'PUT', 'PATCH', 'DELETE' => $this->{strtolower($_SERVER['REQUEST_METHOD'])},
-        else
+            default => $this->get
-            $actual = $this->post;
+        };
 
-        if (Validator::validateList(static::paramRules(), $this->params) &&
+        // Merge uploaded files ($_FILES) into the body data set so the file rules
-            Validator::validateList(static::getRules(),   $this->get   ) &&
+        // (file/image/mimes and the routed min/max/required...) can validate
-            Validator::validateList(static::rules(),      $actual))
+        // uploads through a Request. $this->post is left untouched.
-            return Middleware::next($this);
+        $body = empty($_FILES)
+            ? $actual
+            : new Neuron(array_merge(get_object_vars($actual), $_FILES));
 
-        if (isset(static::messages()[Validator::$lastFailed]))
+        if (
-            $error =  static::messages()[Validator::$lastFailed];
+            Validator::validateList(static::paramRules(), $this->params) &&
-        else {
+            Validator::validateList(static::getRules(), $this->get) &&
-
+            Validator::validateList(static::rules(), $body)
-            $error = 'Error: validation failed of '.preg_replace('/\./', ' as ', Validator::$lastFailed, 1);
+        ) {
+            return;
         }
 
-        return static::onInvalid($error);
+        $error = Validator::message(
+            Validator::$lastFailed,
+            static::messages(),
+            static::attributes()
+        );
+
+        static::onInvalid($error);
     }
 
     /**
-     * Reglas para el método actual.
+     * Rules for the current method.
      *
      * @return array
      */
-    public static function rules(): array {
+    public function rules(): array
+    {
         return [];
     }
 
     /**
-     * Reglas para los parámetros por URL.
+     * Rules for URL parameters.
      *
      * @return array
      */
-    public static function paramRules(): array {
+    public function paramRules(): array
+    {
         return [];
     }
 
     /**
-     * Reglas para los parámetros GET.
+     * Rules for GET parameters.
      *
      * @return array
      */
-    public static function getRules(): array {
+    public function getRules(): array
+    {
         return [];
     }
 
     /**
-     * Mensajes de error en caso de fallar una validación.
+     * Error messages in case a validation fails.
      *
      * @return array
      */
-    public static function messages(): array {
+    public function messages(): array
+    {
         return [];
     }
 
     /**
-     * Función a ejecutar cuando se ha detectado un valor no válido.
+     * Human-readable names for the fields.
+     *
+     * Forwarded to Validator::message() so the :attribute marker in the error
+     * text can be replaced with a friendlier name (e.g. "edad" => "la edad").
+     *
+     * @return array
+     */
+    public function attributes(): array
+    {
+        return [];
+    }
+
+    /**
+     * Function to execute when an invalid value has been detected.
+     *
+     * The default implementation always throws a generic \Exception carrying
+     * the single error message and HTTP 422 as its code; the framework's
+     * exception boundary (Router::apply) renders the response. Override it to
+     * throw a more specific exception type instead. The never return type is
+     * the contract: an override that returned would let the request continue
+     * with invalid data, so PHP rejects such an override at compile time.
      *
      * @param string $error
      *
-     * @return mixed
+     * @return never
+     * @throws Exception
      */
-    protected function onInvalid(string $error): mixed
+    public function onInvalid(string $error): never
     {
-        http_response_code(422);
+        throw new Exception($error, 422);
-        print($error);
-        return null;
     }
 }

src/Libs/Router.php

@@ -1,57 +1,138 @@
 <?php
-/**
- * Router - DuckBrain
- *
- * Librería de Enrrutador.
- * Depende de manera forzada de que la constante ROOT_DIR esté definida
- * y de manera optativa de que la constante SITE_URL lo esté también.
- *
- * @author KJ
- * @website https://kj2.me
- * @licence MIT
- */
 
 namespace Libs;
 
-class Router {
+/**
-    private static $get    = [];
+ * Router - DuckBrain
-    private static $post   = [];
+ *
-    private static $put    = [];
+ * Router library.
-    private static $patch  = [];
+ * It strictly depends on the ROOT_DIR constant being defined
-    private static $delete = [];
+ * and optionally on the SITE_URL constant being defined.
-    private static $last;
+ *
+ * @author KJ
+ * @website https://kj2.me
+ * @license MIT
+ */
+class Router
+{
+    private static array $get    = [];
+    private static array $post   = [];
+    private static array $put    = [];
+    private static array $patch  = [];
+    private static array $delete = [];
+
+    /**
+     * Stores a temporary stack of middlewares to be applied to routes defined
+     * within a specific scope, typically configured by `withMiddleware()`.
+     * These middlewares are active only during the execution of the scope's callback.
+     *
+     * @var array $withMiddlewares<callable>
+     */
+    private static array $withMiddlewares = [];
+
+    /**
+     * Stores the method and index of the last configured route, e.g., ['get', 0].
+     * Used for chaining methods like middleware() or reconfigure().
+     *
+     * @var array $last
+     */
+    private static array $last;
+
+    /**
+     * Stores the parameters extracted from the current matching route.
+     *
+     * @var Neuron $params
+     */
+    public static Neuron $params;
+
+    /**
+     * The callback function to be executed when no route matches.
+     *
+     * @var callable $notFoundCallback
+     */
     public static $notFoundCallback =  'Libs\Router::defaultNotFound';
 
     /**
-     * Función callback por defectio para cuando
+     * Default callback function for when
-     * no se encuentra configurada la ruta.
+     * the route is not found.
      *
      * @return void
      */
-    public static function defaultNotFound (): void
+    public static function defaultNotFound(): void
     {
         header("HTTP/1.0 404 Not Found");
-        echo '<h2 style="text-align: center;margin: 25px 0px;">Error 404 - Página no encontrada</h2>';
+        echo '<h2 style="text-align: center;margin: 25px 0px;">Error 404 - Page Not Found</h2>';
+    }
+
+    /**
+     * The callback function to be executed when the router's boundary
+     * catches an exception thrown anywhere in the matched route chain.
+     * It receives the exception as a named argument: the handler must
+     * declare its parameter as $exception (typeable as \Throwable).
+     *
+     * @var callable $exceptionCallback
+     */
+    public static $exceptionCallback = 'Libs\Router::defaultException';
+
+    /**
+     * Default callback function for exception responses.
+     *
+     * The HTTP status comes from the exception's code only when it is an
+     * integer in the 400-599 range; anything else (0, arbitrary codes, the
+     * SQLSTATE string carried by PDOException) answers 500. The body is
+     * negotiated from the request's Accept header: JSON when the client asks
+     * for application/json, plain text otherwise. The trace is serialized
+     * from getTraceAsString() because json_encode() of a Throwable yields an
+     * empty object: its properties are protected.
+     *
+     * @param \Throwable $exception
+     *
+     * @return void
+     */
+    public static function defaultException(\Throwable $exception): void
+    {
+        $code = $exception->getCode();
+        http_response_code(is_int($code) && $code >= 400 && $code <= 599 ? $code : 500);
+
+        $accept = $_SERVER['HTTP_ACCEPT'] ?? '';
+
+        if (str_contains($accept, 'application/json')) {
+            header('Content-Type: application/json');
+            print(json_encode([
+                'error'     => $exception->getMessage(),
+                'exception' => get_class($exception),
+                'file'      => $exception->getFile(),
+                'line'      => $exception->getLine(),
+                'trace'     => explode(PHP_EOL, $exception->getTraceAsString()),
+            ]));
+
+            return;
+        }
+
+        print($exception->getMessage() . PHP_EOL . $exception->getTraceAsString());
     }
 
     /**
      * __construct
      */
-    private function __construct() {}
+    private function __construct()
+    {
+    }
 
     /**
-     * Parsea para deectar las pseudovariables (ej: {variable})
+     * Parses to detect pseudovariables (e.g., {variable})
      *
      * @param string $path
-     *   Ruta con pseudovariables.
+     *                     Route with pseudovariables.
      *
      * @param callable $callback
-     *   Callback que será llamado cuando la ruta configurada en $path coincida.
+     *                           Callback that will be called when the route configured in $path matches.
      *
      * @return array
-     *   Arreglo con 2 índices:
+     *               Array with 3 indices:
-     *     path        - Contiene la ruta con las pseudovariables reeplazadas por expresiones regulares.
+     *               path        - Contains the route with pseudovariables replaced by regular expressions.
-     *     callback    - Contiene el callback en formato Namespace\Clase::Método.
+     *               callback    - Contains the callback in Namespace\Class::Method format.
+     *               paramNames  - An array of parameter names found in the path.
      */
     private static function parse(string $path, callable $callback): array
     {
@@ -62,72 +143,75 @@ class Router {
         $path = preg_replace(
             ['/\\\{\w+\\\}/s'],
             ['([^\/]+)'],
-            $path);
+            $path
+        );
 
         return [
             'path'       => $path,
             'callback'   => [$callback],
-            'paramNames' => $paramNames
+            'paramNames' => $paramNames,
         ];
     }
 
 
     /**
-     * Devuelve el ruta base o raiz del proyecto sobre la que trabajará el router.
+     * Returns the base or root path of the project on which the router will work.
      *
-     * Ej: Si la url del sistema está en "https://ejemplo.com/duckbrain"
+     * Ex: If the system URL is "https://example.com/duckbrain"
-     *     entonces la ruta base sería "/duckbrain"
+     *     then the base path would be "/duckbrain"
      *
      * @return string
      */
     public static function basePath(): string
     {
-        if (defined('SITE_URL') && !empty(SITE_URL))
+        if (defined('SITE_URL') && !empty(SITE_URL)) {
-            return rtrim(parse_url(SITE_URL, PHP_URL_PATH), '/').'/';
+            return rtrim(parse_url(SITE_URL, PHP_URL_PATH), '/') . '/';
+        }
         return str_replace($_SERVER['DOCUMENT_ROOT'], '/', ROOT_DIR);
     }
 
     /**
-     * Redirije a una ruta relativa interna.
+     * Redirects to an internal relative path.
      *
      * @param string $path
-     *   La ruta relativa a la ruta base.
+     *                     The path relative to the base path.
      *
-     * Ej: Si nuesto sistema está en "https://ejemplo.com/duckbrain"
+     * Ex: If our system is at "https://example.com/duckbrain"
-     *     llamamos a Router::redirect('/docs'), entonces seremos
+     *     and we call Router::redirect('/docs'), we will be
-     *     redirigidos a "https://ejemplo.com/duckbrain/docs".
+     *     redirected to "https://example.com/duckbrain/docs".
      * @return void
      */
     public static function redirect(string $path): void
     {
-        header('Location: '.static::basePath().ltrim($path, '/'));
+        header('Location: ' . static::basePath() . ltrim($path, '/'));
-        exit;
     }
 
     /**
-     * Añade un middleware a la última ruta usada.
+     * Adds a middleware to the last used route.
-     * Solo se puede usar un middleware a la vez.
+     * Only one middleware can be added at a time.
      *
      * @param callable $callback
-     * @param int $prioriry
+     * @param int|null $priority Optional priority for the middleware execution order.
      *
      * @return static
-     *   Devuelve la instancia actual.
+     *                Returns the current instance.
      */
-    public static function middleware(callable $callback, int $priority = null): static
+    public static function middleware(callable $callback, ?int $priority = null): static
     {
-        if (!isset(static::$last))
+        if (!isset(static::$last)) {
             return new static();
+        }
 
         $method = static::$last[0];
         $index = static::$last[1];
 
-        if (isset($priority) && $priority <= 0)
+        if (isset($priority) && $priority <= 0) {
             $priority = 1;
+        }
 
-        if (is_null($priority) || $priority >= count(static::$$method[$index]['callback']))
+        if (is_null($priority) || $priority >= count(static::$$method[$index]['callback'])) {
             static::$$method[$index]['callback'][] = $callback;
-        else {
+        } else {
             static::$$method[$index]['callback'] = array_merge(
                 array_slice(static::$$method[$index]['callback'], 0, $priority),
                 [$callback],
@@ -139,7 +223,29 @@ class Router {
     }
 
     /**
-     * Reconfigura el callback final de la última ruta.
+     * Temporarily applies a set of middlewares to routes defined within a given callback.
+     * The middlewares are only active for the duration of the callback execution
+     * and are reset afterwards.
+     *
+     * @param callable $middleware
+     * @param callable $callback
+     *
+     * @return static
+     */
+    public static function withMiddleware(callable $middleware, callable $callback): static
+    {
+        $currentMiddlewares = static::$withMiddlewares;
+        array_unshift(static::$withMiddlewares, $middleware);
+
+        $callback();
+
+        static::$withMiddlewares = $currentMiddlewares; // Restore withMiddleware
+
+        return new static();
+    }
+
+    /**
+     * Reconfigures the final callback of the last route.
      *
      * @param callable $callback
      *
@@ -147,8 +253,9 @@ class Router {
      */
     public static function reconfigure(callable $callback): static
     {
-        if (empty(static::$last))
+        if (empty(static::$last)) {
             return new static();
+        }
 
         $method = static::$last[0];
         $index  = static::$last[1];
@@ -159,20 +266,20 @@ class Router {
     }
 
     /**
-     * Configura calquier método para todas las rutas.
+     * Configures any method for all routes.
      *
-     * En caso de no recibir un callback, busca la ruta actual
+     * If no callback is received, it searches for the current route
-     * solo configura la ruta como la última configurada
+     * and only sets the route as the last configured one
-     * siempre y cuando la misma haya sido configurada previamente.
+     * provided it has been configured previously.
      *
      * @param string        $method
-     *    Método http.
+     *                                HTTP method.
      * @param string        $path
-     *    Ruta con pseudovariables.
+     *                                Route with pseudovariables.
      * @param callable|null $callback
      *
-     * @return
+     * @return static
-     *    Devuelve la instancia actual.
+     *                Returns the current instance.
      */
     public static function configure(string $method, string $path, ?callable $callback = null): static
     {
@@ -181,125 +288,143 @@ class Router {
             $path = preg_replace(
                 ['/\\\{\w+\\\}/s'],
                 ['([^\/]+)'],
-                $path);
+                $path
+            );
 
-            foreach(static::$$method as $index => $router)
+            foreach (static::$$method as $index => $router) {
                 if ($router['path'] == $path) {
                     static::$last = [$method, $index];
                     break;
                 }
+            }
 
             return new static();
         }
 
         static::$$method[] = static::parse($path, $callback);
-        static::$last = [$method, count(static::$$method)-1];
+        static::$last = [$method, count(static::$$method) - 1];
+
+        foreach (static::$withMiddlewares as $middleware) {
+            static::middleware($middleware);
+        }
+
         return new static();
     }
 
     /**
-     * Define los routers para el método GET.
+     * Defines routers for the GET method.
      *
      * @param string        $path
-     *   Ruta con pseudovariables.
+     *                                Route with pseudovariables.
-     * @param callable $callback
+     * @param callable|null $callback
-     *   Callback que será llamado cuando la ruta configurada en $path coincida.
+     *                                Callback that will be called when the route configured in $path matches.
      *
      * @return static
-     *   Devuelve la instancia actual.
+     *                Returns the current instance.
      */
-    public static function get(string $path, callable $callback = null): static
+    public static function get(string $path, ?callable $callback = null): static
     {
         return static::configure('get', $path, $callback);
     }
 
     /**
-     * Define los routers para el método POST.
+     * Defines routers for the POST method.
      *
      * @param string        $path
-     *   Ruta con pseudovariables.
+     *                                Route with pseudovariables.
-     * @param callable $callback
+     * @param callable|null $callback
-     *   Callback que será llamado cuando la ruta configurada en $path coincida.
+     *                                Callback that will be called when the route configured in $path matches.
      *
      * @return static
-     *   Devuelve la instancia actual.
+     *                Returns the current instance.
      */
-    public static function post(string $path, callable $callback = null): static
+    public static function post(string $path, ?callable $callback = null): static
     {
         return static::configure('post', $path, $callback);
     }
 
     /**
-     * Define los routers para el método PUT.
+     * Defines routers for the PUT method.
      *
      * @param string        $path
-     *   Ruta con pseudovariables.
+     *                                Route with pseudovariables.
-     * @param callable $callback
+     * @param callable|null $callback
-     *   Callback que será llamado cuando la ruta configurada en $path coincida.
+     *                                Callback that will be called when the route configured in $path matches.
      *
      * @return static
-     *   Devuelve la instancia actual
+     *                Returns the current instance
      */
 
-    public static function put(string $path, callable $callback = null): static
+    public static function put(string $path, ?callable $callback = null): static
     {
         return static::configure('put', $path, $callback);
     }
 
     /**
-     * Define los routers para el método PATCH.
+     * Defines routers for the PATCH method.
      *
      * @param string        $path
-     *   Ruta con pseudovariables.
+     *                                Route with pseudovariables.
-     * @param callable $callback
+     * @param callable|null $callback
-     *   Callback que será llamado cuando la ruta configurada en $path coincida.
+     *                                Callback that will be called when the route configured in $path matches.
      *
      * @return static
-     *   Devuelve la instancia actual
+     *                Returns the current instance
      */
-    public static function patch(string $path, callable $callback = null): static
+    public static function patch(string $path, ?callable $callback = null): static
     {
         return static::configure('patch', $path, $callback);
     }
 
     /**
-     * Define los routers para el método DELETE.
+     * Defines routers for the DELETE method.
      *
      * @param string        $path
-     *   Ruta con pseudovariables
+     *                                Route with pseudovariables
-     * @param callable $callback
+     * @param callable|null $callback
-     *   Callback que será llamado cuando la ruta configurada en $path coincida.
+     *                                Callback that will be called when the route configured in $path matches.
      *
      * @return static
-     *   Devuelve la instancia actual
+     *                Returns the current instance
      */
-    public static function delete(string $path, callable $callback = null): static
+    public static function delete(string $path, ?callable $callback = null): static
     {
         return static::configure('delete', $path, $callback);
     }
 
     /**
-     * Devuelve la ruta actual tomando como raíz la ruta de instalación de DuckBrain.
+     * Returns the current path, taking the DuckBrain installation path as the root.
      *
      * @return string
      */
-    public static function currentPath() : string
+    public static function currentPath(): string
     {
-        return preg_replace('/'.preg_quote(static::basePath(), '/').'/',
+        return preg_replace(
-                            '/', strtok($_SERVER['REQUEST_URI'], '?'), 1);
+            '/' . preg_quote(static::basePath(), '/') . '/',
+            '/',
+            strtok($_SERVER['REQUEST_URI'], '?'),
+            1
+        );
     }
 
     /**
-     * Aplica la configuración de rutas.
+     * Applies the route configuration.
      *
-     * @param string $path (opcional) Ruta a usar. Si no se define, detecta la ruta actual.
+     * This method is the framework's error boundary: any \Throwable thrown
+     * while running the matched route's callback chain, while printing the
+     * returned data, or while resolving the not-found callback is caught
+     * here and rendered through $exceptionCallback. A failing handler is
+     * deliberately left uncaught (double failure falls back to PHP itself).
+     *
+     * @param string|null $path (optional) Path to use. If not defined, it detects the current path.
      *
      * @return void
      */
-    public static function apply(string $path = null): void
+    public static function apply(?string $path = null): void
     {
+        try {
             $path    = $path ?? static::currentPath();
-        $routers = match($_SERVER['REQUEST_METHOD']) { // Según el método selecciona un arreglo de routers
+            $routers = match ($_SERVER['REQUEST_METHOD']) { // Selects an array of routers based on the method
                 'POST'   => static::$post,
                 'PUT'    => static::$put,
                 'PATCH'  => static::$patch,
@@ -307,58 +432,25 @@ class Router {
                 default  => static::$get
             };
 
-        foreach ($routers as $router) { // revisa todos los routers para ver si coinciden con la ruta actual
+            foreach ($routers as $router) { // Checks all routers to see if they match the current path
-            if (preg_match_all('/^'.$router['path'].'\/?$/si',$path, $matches, PREG_PATTERN_ORDER)) {
+                if (preg_match_all('/^' . $router['path'] . '\/?$/si', $path, $matches, PREG_PATTERN_ORDER)) {
                     unset($matches[0]);
 
-                // Objtener un reflection del callback
+                    // Checking and storing the variable parameters of the route
-                $lastCallback = $router['callback'][0];
-                if ($lastCallback instanceof \Closure) { // si es función anónima
-                    $reflectionCallback = new \ReflectionFunction($lastCallback);
-                } else {
-                    if (is_string($lastCallback))
-                        $lastCallback = preg_split('/::/', $lastCallback);
-
-                    // Revisamos su es un método o solo una función
-                    if (count($lastCallback) == 2)
-                        $reflectionCallback = new \ReflectionMethod($lastCallback[0], $lastCallback[1]);
-                    else
-                        $reflectionCallback = new \ReflectionFunction($lastCallback[0]);
-                }
-
-                // Obtener los parámetros
-                $arguments  = $reflectionCallback->getParameters();
-                if (isset($arguments[0])) {
-                    // Obtenemos la clase del primer parámetro
-                    $argumentClass = strval($arguments[0]->getType());
-
-                    // Verificamos si la clase está o no tipada
-                    if (empty($argumentClass)) {
-                        $request = new Request;
-                    } else {
-                        $request = new $argumentClass;
-
-                        // Verificamos que sea instancia de Request (requerimiento)
-                        if (!($request instanceof Request))
-                            throw new \Exception('Bad argument type on router callback.');
-                    }
-                } else {
-                    $request = new Request;
-                }
-
-                // Comprobando y guardando los parámetros variables de la ruta
                     if (isset($matches[1])) {
+                        static::$params = new Neuron();
                         foreach ($matches as $index => $match) {
-                        $paramName                   = $router['paramNames'][$index-1];
+                            $paramName = $router['paramNames'][$index - 1];
-                        $request->params->$paramName = urldecode($match[0]);
+                            static::$params->{$paramName} = urldecode($match[0]);
                         }
                     }
 
-                // Llama a la validación y luego procesa la cola de callbacks
+                    // Processes the callback queue
-                $request->next = $router['callback'];
+                    foreach (array_reverse($router['callback']) as $callback) {
-                $data          = $request->validate();
+                        $data = Synapsis::resolve($callback);
+                    }
 
-                // Por defecto imprime como JSON si se retorna algo
+                    // By default, prints as JSON if something is returned
                     if (isset($data)) {
                         header('Content-Type: application/json');
                         print(json_encode($data));
@@ -368,7 +460,10 @@ class Router {
                 }
             }
 
-        // Si no hay router que coincida llamamos a $notFoundCallBack
+            // If no router matches, call $notFoundCallBack
-        call_user_func_array(static::$notFoundCallback, [new Request]);
+            Synapsis::resolve(static::$notFoundCallback);
+        } catch (\Throwable $exception) {
+            Synapsis::resolve(static::$exceptionCallback, ['exception' => $exception]);
+        }
     }
 }

src/Libs/Synapsis.php

@@ -0,0 +1,179 @@
+<?php
+
+namespace Libs;
+
+use Closure;
+use Exception;
+use ReflectionClass;
+use ReflectionFunction;
+use ReflectionMethod;
+use ReflectionParameter;
+
+/**
+ * Synapsis - DuckBrain
+ *
+ * Class responsible for dependency resolution and injection.
+ *
+ * @author KJ
+ * @website https://kj2.me
+ * @license MIT
+ */
+class Synapsis
+{
+    /**
+     * @var array<class-string, class-string> $bindings
+     */
+    private static array $bindings = [];
+    /**
+     * @var array<class-string, mixed> $instances
+     */
+    private static array $instances = [];
+
+    /**
+     * Binds an interface to a class to instantiate it instead.
+     *
+     * @param class-string $interfaceName
+     * @param class-string $className
+     *
+     * @return void
+     * @throws Exception If the interface or class does not exist.
+     */
+    public static function bind(string $interfaceName, string $className): void
+    {
+        if (interface_exists($interfaceName) && class_exists($className)) {
+            static::$bindings[$interfaceName] = $className;
+            return;
+        }
+
+        throw new Exception('Error at binding non existant Interface or ClassName.');
+    }
+
+    /**
+     * Binds multiple interfaces to multiple classes in bulk.
+     *
+     * @param array<class-string, class-string> $bindings
+     *
+     * @return void
+     */
+    public static function bulkBind(array $bindings): void
+    {
+        foreach ($bindings as $interfaceName => $className) {
+            static::bind($interfaceName, $className);
+        }
+    }
+
+    /**
+     * Resolves and injects dependencies for a callable and returns its result.
+     *
+     * @param callable             $action
+     * @param array<string, mixed> $named  Associative array of values injected into the callable's
+     *                                     parameters by exact name match. Consumed in resolveParameterValues().
+     *
+     * @return mixed
+     * @throws Exception If an unhandled callable type is provided.
+     */
+    public static function resolve(callable $action, array $named = []): mixed
+    {
+        if ($action instanceof Closure) { // If it's an anonymous function
+            $reflectionCallback = new ReflectionFunction($action);
+        } else { // Array or string with the method
+            if (is_string($action)) {
+                $action = preg_split('/::/', $action);
+            }
+
+            // Check if it's a method or just a function
+            if (count($action) == 2) {
+                $reflectionCallback = new ReflectionMethod($action[0], $action[1]);
+            } else {
+                $reflectionCallback = new ReflectionFunction($action[0]);
+            }
+        }
+
+        // Get the parameters
+        return call_user_func_array(
+            $action,
+            static::resolveParameterValues($reflectionCallback->getParameters(), $named)
+        );
+    }
+
+    /**
+     * Resolves and injects dependencies for a class and returns its result.
+     *
+     * @param class-string $className
+     *
+     * @return mixed
+     * @throws Exception If a binding is missing for an interface or the class does not exist.
+     */
+    public static function &resolveInstance(string $className): mixed
+    {
+        if (interface_exists($className)) {
+            if (isset(static::$bindings[$className])) {
+                $className = static::$bindings[$className];
+            } else {
+                throw new Exception("Missing binding for interface: {$className}");
+            }
+        }
+
+        if (!class_exists($className)) {
+            throw new Exception("Cannot resolve: {$className}");
+        }
+
+        if (!isset(static::$instances[$className])) {
+            // If the instance has not been resolved before, resolve it
+            $reflectionClass = new ReflectionClass($className);
+            $constructor = $reflectionClass->getConstructor();
+            static::$instances[$className] = new $className(
+                ...static::resolveParameterValues($constructor?->getParameters() ?? [])
+            );
+        }
+
+        return static::$instances[$className];
+    }
+
+    /**
+     * Resolves parameter values by injecting dependencies.
+     *
+     * @param array<ReflectionParameter> $parameters
+     * @param array<string, mixed> $named
+     *                                   Values injected into parameters whose name matches the key,
+     *                                   taking precedence over optional defaults and DI resolution.
+     *                                   Keys matching no parameter are ignored.
+     *
+     * @return array<mixed>
+     * @throws Exception    If a primitive parameter does not have a default value.
+     */
+    public static function resolveParameterValues(array $parameters, array $named = []): array
+    {
+        $values = [];
+        foreach ($parameters as $parameter) {
+            if ($parameter->isVariadic()) { // Skip variatic parameters
+                continue;
+            }
+
+            if (array_key_exists($parameter->getName(), $named)) { // Named values win over defaults and DI
+                $values[] = $named[$parameter->getName()];
+                continue;
+            }
+
+            if ($parameter->isOptional()) { // Always use the default value first
+                $values[] = $parameter->getDefaultValue();
+                continue;
+            }
+
+            $paramType = $parameter->getType();
+            if ($paramType === null) {
+                // If no type is declared, and it's not optional, we cannot resolve it.
+                throw new Exception(
+                    "Untyped parameter '{$parameter}' expect at least a default value or must be optional."
+                );
+            }
+
+            if ($paramType->isBuiltin()) {
+                throw new Exception("Primitive parameter '{$parameter->getName()}' expects at least a default value.");
+            }
+
+            $values[] = static::resolveInstance($paramType->getName());
+        }
+        return $values;
+    }
+}

src/Libs/View.php

@@ -1,80 +1,80 @@
 <?php
-/**
- * View - DuckBrain
- *
- * Manejador de vistas simplificado.
- *
- * @author KJ
- * @website https://kj2.me
- * @licence MIT
-*/
 
 namespace Libs;
 
-class View extends Neuron {
+/**
-
+ * View - DuckBrain
-    /**
-     * Incluye el archivo.
  *
-     * @param string $viewName  Ruta relativa y el nommbre sin extensión del archivo.
+ * Simplified view handler.
-     * @param string $viewPath  (opcional) Ruta donde se encuentra la vista.
+ *
-     * @param string $extension (opcional) Extensión del archivo.
+ * @author KJ
+ * @website https://kj2.me
+ * @license MIT
+ */
+class View extends Neuron
+{
+    /**
+     * Includes the file.
+     *
+     * @param string      $viewName  Relative path and filename without extension.
+     * @param string|null $viewPath  (Optional) Path where the view file is located.
+     * @param string      $extension (Optional) File extension.
      *
      * @return void
      */
     protected function include(
         string $viewName,
-        string $viewPath  = null,
+        ?string $viewPath = null,
         string $extension = 'php'
-    ): void
+    ): void {
-    {
+        if (
-        $view = $this;
+            isset($viewPath) &&
-
+            file_exists("$viewPath$viewName.$extension")
-        if (isset($viewPath) &&
+        ) {
-            file_exists("$viewPath$viewName.$extension")) {
             include("$viewPath$viewName.$extension");
             return;
         }
 
-        include(ROOT_CORE."/Views/$viewName.$extension");
+        include(ROOT_CORE . "/Views/$viewName.$extension");
     }
 
     /**
-     * Función que "renderiza" las vistas
+     * Function that "renders" views.
      *
-     * @param string        $viewName  Ruta relativa y el nommbre sin extensión del archivo.
+     * @param string       $viewName  Relative path and filename without extension.
-     * @param array|Neuron  $params    (opcional) Arreglo que podrá ser usado en la vista mediante $view ($param['index'] se usaría así: $view->index)
+     * @param array|Neuron $params    (Optional) Array that can be used in the view
-     * @param string        $viewPath  (opcional) Ruta donde se encuentra la vista. En caso de que la vista no se encuentre en esa ruta, se usará la ruta por defecto "src/Views/".
+     *                                via $view ($param['index'] would be used as: $view->index).
-     * @param string        $extension (opcional) Extensión del archivo.
+     * @param string|null  $viewPath  (Optional) Path where the view is located. If the
+     *                                view is not found in this path, the default path "src/Views/" will be used.
+     * @param string       $extension (Optional) File extension.
      *
      * @return void
      */
     public static function render(
         string $viewName,
         array|Neuron $params = [],
-        string $viewPath     = null,
+        ?string $viewPath = null,
         string $extension = 'php'
-    ): void
+    ): void {
-    {
         $instance = new View($params);
-        $instance->html($viewName, $viewPath);
+        $instance->html($viewName, $viewPath, $extension);
     }
 
     /**
-     * Renderiza las vistas HTML
+     * Renders HTML views.
      *
-     * @param string $viewName  Ruta relativa y el nommbre sin extensión del archivo ubicado en src/Views
+     * @param string      $viewName  Relative path and filename without extension located in src/Views.
-     * @param string $viewPath  (opcional) Ruta donde se encuentra la vista. En caso de que la vista no se encuentre en esa ruta, se usará la ruta por defecto "src/Views/".
+     * @param string|null $viewPath  (Optional) Path where the view is located. If the view is not
-     * @param string $extension (opcional) Extensión del archivo.
+     *                               found in this path, the default path "src/Views/" will be used.
+     * @param string      $extension (Optional) File extension.
      *
      * @return void
      */
     public function html(
         string $viewName,
-        string $viewPath  = null,
+        ?string $viewPath = null,
         string $extension = 'php'
-    ): void
+    ): void {
-    {
         $this->include(
             $viewName,
             $viewPath,
@@ -83,47 +83,47 @@ class View extends Neuron {
     }
 
     /**
-     * Renderiza código CSS.
+     * Renders CSS code.
      *
-     * @param string $viewName  Ruta relativa y el nommbre sin extensión del archivo ubicado en src/Views
+     * @param string      $viewName  Relative path and filename without extension located in src/Views.
-     * @param string $viewPath  (opcional) Ruta donde se encuentra la vista. En caso de que la vista no se encuentre en esa ruta, se usará la ruta por defecto "src/Views/".
+     * @param string|null $viewPath  (Optional) Path where the view is located. If the view is not
-     * @param string $extension (opcional) Extensión del archivo.
+     *                               found in this path, the default path "src/Views/" will be used.
+     * @param string      $extension (Optional) File extension.
      *
      * @return void
      */
     public function css(
         string $viewName,
-        string $viewPath  = null,
+        ?string $viewPath = null,
         string $extension = 'css'
-    ): void
+    ): void {
-    {
         header("Content-type: text/css");
         $this->include($viewName, $viewPath, $extension);
     }
 
     /**
-     * Renderiza código Javascript.
+     * Renders Javascript code.
      *
-     * @param string $viewName  Ruta relativa y el nommbre sin extensión del archivo ubicado en src/Views
+     * @param string      $viewName  Relative path and filename without extension located in src/Views.
-     * @param string $viewPath  (opcional) Ruta donde se encuentra la vista. En caso de que la vista no se encuentre en esa ruta, se usará la ruta por defecto "src/Views/".
+     * @param string|null $viewPath  (Optional) Path where the view is located. If the view is not
-     * @param string $extension (opcional) Extensión del archivo.
+     *                               found in this path, the default path "src/Views/" will be used.
+     * @param string      $extension (Optional) File extension.
      *
      * @return void
      */
     public function js(
         string $viewName,
-        string $viewPath  = null,
+        ?string $viewPath = null,
         string $extension = 'js'
-    ): void
+    ): void {
-    {
         header("Content-type: application/javascript");
         $this->include($viewName, $viewPath, $extension);
     }
 
     /**
-     * Imprime los datos en Json.
+     * Prints data as JSON.
      *
-     * @param object|array $data Objeto o array que se imprimirá a JSON.
+     * @param object|array $data Object or array to be printed as JSON.
      *
      * @return void
      */
@@ -134,9 +134,9 @@ class View extends Neuron {
     }
 
     /**
-     * Imprime los datos en texto plano
+     * Prints data as plain text.
      *
-     * @param string $txt Contenido de texto.
+     * @param string $txt Text content.
      *
      * @return void
      */
@@ -147,7 +147,7 @@ class View extends Neuron {
     }
 
     /**
-     * Intenta devolver la url absoluta a partir de una ruta relativa.
+     * Attempts to return the absolute URL from a relative path.
      *
      * @param string $path
      *
@@ -155,10 +155,10 @@ class View extends Neuron {
      */
     public static function route(string $path = '/'): string
     {
-        if (defined('SITE_URL') && !empty(SITE_URL))
+        if (defined('SITE_URL') && !empty(SITE_URL)) {
-            return rtrim(SITE_URL, '/').'/'.ltrim($path, '/');
+            return rtrim(SITE_URL, '/') . '/' . ltrim($path, '/');
+        }
 
         return $path;
     }
 }
-?>